Common sense tells us that this should be a match made in heaven: One of the world's most popular and profitable mobile games, Arena of Valor, running on one of the world's most popular and powerful smartphones, the Samsung Galaxy S9. But rather than rely on common sense, we prefer objective data. How well does this pairing of app and device perform in reality? How power efficient is it? And is the gaming experience an upgrade over the Galaxy S8 or iPhone X? We used the GameBench Android app (available for free from the Play Store) to find out...